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reference designUCC28704 | Demoboard UCC28704EVM-724

Texas Instruments UCC28704 | Demoboard UCC28704EVM-724

UCC28704 5V/10W Off-Line Power Supply With PSR for USB Wall Adapters Evaluation Module

Overview

TopologyFlyback Converter
Input voltage85-265 V
Output 15 V / 2 A

Description

The UCC28704EVM-724 is a 10-W off-line isolated power supply providing 5-V output on a USB-A port. The converter output voltage and current are regulated to 5% accuracy without using an optocoupler or secondary-side feedback circuits. The EVM demonstrates a low-cost solution to comply with global external power-supply efficiency standards (Department of Energy Level VI, EU Code of Conduct V5 Tier-2, etc.) without adding a secondary-side synchronous rectifier.

Features

Universal AC input range (85-V to 265-V AC), 5-V/2-A isolated output5% output voltage (CV) and current (CC) accuracy with primary-side regulation (PSR)83% average efficiency and <60-mW standby power performance exceeds DoE Level VI and EU CoC V5 Tier-2 EPS standards80-mV p-p output voltage ripple at end of 0.15-Ω cableFault protections: output overvoltage, overcurrent, and load short circuit

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Z @ 100 MHz(Ω)
Zmax(Ω)
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742792121
SPECWE-CBF SMT EMI Suppression Ferrite Bead, 300 Ω, 330 Ω
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
Impedance @ 100 MHz300 Ω
Maximum Impedance330 Ω
Maximum Impedance110 MHz 
Rated Current 23000 mA
DC Resistance0.06 Ω
TypeHigh Current 
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750315841
SPECTransformer, –, –
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Downloads4 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product series Transformer
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